Monolithic Power Systems NB679A
The NB679A is a fully integrated, highfrequency, synchronous, rectified, step-down, switch-mode converter with a fixed 5.1V output and low-power mode voltage scaling. It offers a very compact solution to achieve an 8A continuous output current and a 10A peak output current over a wide input supply range with excellent load and line regulation. The NB679A operates at high efficiency over a wide output current load range based on MPS proprietary switching loss reduction technology and internal low Ron power MOSFETs.| Part No. | NB679A |
|---|---|
| Datasheet | NB679A Download |
| Manufacturer |  Monolithic Power Systems |
| Description | Synchronous Buck Converter |
| Buy | Stock & Price |
DESCRIPTION
Adaptive constant-on-time (COT) control mode provides fast transient response and eases loop stabilization. The DC auto-tune loop provides good load and line regulation. The NB679A provides a fixed 5V LDO, which can be used to power the external peripheries. Full protection features include OC limit, OVP, UVP, and thermal shutdown. The converter requires a minimum number of external components and is available in a QFN-12 2mm x 3mm package.FEATURES
● Wide 5.5V to 28V Operating Input Range● Fixed 5.1V Vout (+2% of 5V Vout)
● LP# Output Voltage Scaling (-3% of 5V Vout)
● Supports Large Duty Operation
● Ultrasonic Mode
● 100μA Low Quiescent Current
● 8A Continuous Output Current and 10A Peak Output Current
● Adaptive COT for Fast Transient
● DC Auto-Tune Loop
● Stable with POSCAP and Ceramic Output Capacitors
● Built-In 5V, 100mA LDO with Switch Over
● 1% Reference Voltage
● Internal Soft Start
● Output Discharge
● 700kHZ Switching Frequency
● OCP, OVP, UVP, and Thermal Shut...
